Navigation Links
Nanoparticles improve solar collection efficiency
Date:4/5/2011

Washington, D.C. (April 5, 2011) -- Using minute graphite particles 1000 times smaller than the width of a human hair, mechanical engineers at Arizona State University hope to boost the efficiencyand profitabilityof solar power plants.

Photovoltaic (PV) solar panels are popping up more and more on rooftops, but they're not necessarily the best solar power solution. "The big limitation of PV panels is that they can use only a fraction of the sunlight that hits them, and the rest just turns into heat, which actually hurts the performance of the panels," explains Robert Taylor, a graduate student in mechanical engineering at Arizona State University.

An alternative that can make use of all of the sunlight, including light PVs can't use, is the solar thermal collector. The purpose of these collectorswhich take the form of dishes, panels, evacuated tubes, towers, and moreis to collect heat that can then be used to boil water to make steam, for example, which drives a turbine to create electricity.

To further increase the efficiency of solar collectors, Taylor and his colleagues have mixed nanoparticlesparticles a billionth of a meter in sizeinto the heat-transfer oils normally used in solar thermal power plants. The researchers chose graphite nanoparticles, in part because they are black and therefore absorb light very well, making them efficient heat collectors. In laboratory tests with small dish collectors, Taylor and his colleagues found that nanoparticles increased heat-collection efficiency by up to 10 percent. "We estimate that this could mean up to $3.5 million dollars per year more revenue for a 100 megawatt solar power plant," he says.

What's more, Taylor adds, graphite nanoparticles "are cheap"less than $1 per grambut with 100 grams of nanoparticles providing the same heat-collecting surface area as an entire football field. "It might also be possible to filter out nanoparticles of soot, which have similar absorbing potential, from coal power plants for use in solar systems," he says. "I think that idea is particularly attractive: using a pollutant to harvest clean, green solar energy."


'/>"/>

Contact: Charles E. Blue
cblue@aip.org
301-209-3091
American Institute of Physics
Source:Eurekalert

Related biology technology :

1. New instrument keeps an eye on nanoparticles
2. Special sugar, nanoparticles combine to detect cholera toxin
3. Targeted Gold Nanoparticles and Noninvasive Radio Fields Attacking One of the Deadliest and Least Curable Types of Cancer: Pancreatic Carcinoma
4. Tecnalia investigates nanoparticles for soil remediation
5. Scientist chronicle nanoparticles journey from the lungs into the body
6. Trouble with sputter? Blame giant nanoparticles
7. Gold nanoparticles enrich everyday products
8. Magnetic fields drive drug-loaded nanoparticles to reduce blood vessel blockages in an animal study
9. Study shows that size affects structure of hollow nanoparticles
10. Engineers produce how-to guide for controlling the structure of nanoparticles
11. New discovery reveals fate of nanoparticles in human cells
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/28/2016)... Boston, MA (PRWEB) , ... April 28, 2016 ... ... (EDT), Asymmetrex will deliver a talk on its first-in-class technologies for ... the 2016 Meeting on RNAiMicroRNA Biology to Reprogramming & CRISPR-based Genome ...
(Date:4/27/2016)... ... 2016 , ... Cambridge Semantics, the leading provider of Smart Data ... has been named to The Silicon Review’s “20 Fastest Growing Big Data Companies of ... serves the needs of end users facing some of the most complex data challenges ...
(Date:4/27/2016)... NY (PRWEB) , ... April 27, 2016 , ... ... it. Touch screen mobile devices with fingerprint recognition for secure access, voice ... are only a few ways consumers are interacting with biometrics technology today. ...
(Date:4/27/2016)... British Virgin Islands (PRWEB) , ... April 27, ... ... Holding Company Ltd. (d/b/a Biohaven) is pleased to announce the appointment of John Tilton ... he was an Executive Director and one of the founding commercial leaders responsible ...
Breaking Biology Technology:
(Date:4/15/2016)... , April 15, 2016  A new ... make more accurate underwriting decisions in a fraction ... timely, competitively priced and high-value life insurance policies ... screenings. With Force Diagnostics, rapid testing ... lifestyle data readings (blood pressure, weight, pulse, BMI, ...
(Date:3/31/2016)...  Genomics firm Nabsys has completed a financial  restructuring ... , M.D., who returned to the company in October ... team, including Chief Technology Officer, John Oliver , ... and Vice President of Software and Informatics, Michael ... Dr. Bready served as CEO of Nabsys from 2005-2014 ...
(Date:3/21/2016)... March 22, 2016 Unique ... passcodes for superior security   ... provider of secure digital communications services, today announced it ... and offer enterprise customers, particularly those in the Financial ... and voice authentication within a mobile app, alongside, and ...
Breaking Biology News(10 mins):